Question about Kirby G4 Bagged Upright Vacuum

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I had problems replacing the fan on my KirbyG4 but with the help of this site was finally able to do so. When I put it all back together and turned on, the motor was very weak and then stopped and I smell something burning. This repeats every time I turn it on. Could I have burned up the motor while replacing the fan? The motor seemed fine before I started the fan replacement. I am the grandmother who posted yesterday.

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  • cmoore2440
    cmoore2440 Oct 23, 2013

    The beater bar is clean and rolls smoothly . Last night I removed the bar attachment, stuck a screwdriver into the switch which is on the front and even without the attachment, the motor was very weak. This made me conclude that the attachment and roller are not related to my problem. Since my motor was fine before I changed the fan, I think I must have damaged it. Can't decide whether to continue trying to fix. If I have to replace the motor I think I will just ditch. Any thoughts anyone?

  • cmoore2440
    cmoore2440 Oct 23, 2013

    Could I havve done something during the fan installation that damaged the motor brushes?



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There are a couple of possibilities here. First, I hope you made sure the new fan spun freely after installation, if so, and if you re-installed the rest of the parts correctly, you may have the belt installation crank on the front of the agitator housing in the up position yet. This is when you've installed the belt over the motor spindle. After that you need to continue cranking the assembly on the front until it's all the way down. That releases the belt so it can run freely and turn the brush. If it's still in the up position, it has the belt locked and the spindle will rub against the belt making the smell and smoke. Also if you closed the metal bottom plate and caught the belt under it when you finished the installation, that will also keep the belt from turning with the brush.

Posted on Oct 22, 2013


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Posted on Jan 02, 2017

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SOURCE: belt burning

the beater bar probably needs to be removed & cleaned. the shaft & bearings get bound up with hair, string, etc.. with the belt off the bar, it should spin fairly easily. if it's hard to turn,(belt off) then it's bound up.

Posted on Jun 15, 2007

  • 1554 Answers

SOURCE: burning smell

Unlock the sweeper brushes and take them out. on each end is a cup bearing and should be free of debris.
then check around and under the belt and likely there is debris wrapped around it.
the post is getting hot as your pulling too much of a load.
though if it continues the motor may have a bad set of motor brushes (inside the motor) or bad wiring (kinda unlikely).

Posted on Apr 01, 2008

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